linux-kernel - [PATCH 3/3] tty: serial: altera: use altera_jtaguart_stop

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Date:   Mon, 11 Apr 2022 12:45:06 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     gregkh@...uxfoundation.org
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiri Slaby <jslaby@...e.cz>,
        Tobias Klauser <tklauser@...tanz.ch>
Subject: [PATCH 3/3] tty: serial: altera: use altera_jtaguart_stop_tx()

altera_jtaguart_tx_chars() duplicates what altera_jtaguart_stop_tx()
already does. So instead of the duplication, call the helper instead.

Not only it makes the code cleaner, but it also says what the "if"
really does.

Cc: Tobias Klauser <tklauser@...tanz.ch>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/tty/serial/altera_jtaguart.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index 1c16345d0a1f..cb791c5149a3 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -168,10 +168,8 @@ static void altera_jtaguart_tx_chars(struct altera_jtaguart *pp)
 		}
 	}
 
-	if (pending == 0) {
-		pp->imr &= ~ALTERA_JTAGUART_CONTROL_WE_MSK;
-		writel(pp->imr, port->membase + ALTERA_JTAGUART_CONTROL_REG);
-	}
+	if (pending == 0)
+		altera_jtaguart_stop_tx(port);
 }
 
 static irqreturn_t altera_jtaguart_interrupt(int irq, void *data)
-- 
2.35.1